Spring Framework

Spring Framework HelloWorld

Spring Framework：4.3.14.RELEASE

Framework Modules

创建一个简单的JavaBean：HelloWorld

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public class HelloWorld {

	private String name;

	public void setName(String name) {
		this.name = name;
	}

	public void hello() {
		System.out.println("Hello " + name);
	}

}

创建一个简单的 applicationContext.xml

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<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">

  <!--配置 Bean-->
  <bean id="helloWord" class="com.example.spring.HelloWorld">
    <property name="name" value="Example"></property>
  </bean>

</beans>

创建一个简单的使用示例

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import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class HelloWordTest02 {

	public static void main(String[] args) {
		// 创建 Spring IOC 容器
		ApplicationContext applicationContext =
			new ClassPathXmlApplicationContext("applicationContext.xml");

		// 从 IOC 容器中获取 Bean 实例
		HelloWorld helloWorld = applicationContext.getBean("helloWorld", HelloWorld.class);

		// 调用 setName 方法
		helloWorld.setName("Example");

		// 调用 hello 方法
		helloWorld.hello();
	}
}